2539641 has 8 divisors (see below), whose sum is σ = 3646720. Its totient is φ = 1562832.

The previous prime is 2539639. The next prime is 2539651. The reversal of 2539641 is 1469352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2539641 - 2¹ = 2539639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2539599 and 2539608.

It is not an unprimeable number, because it can be changed into a prime (2539631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32521 + ... + 32598.

It is an arithmetic number, because the mean of its divisors is an integer number (455840).

2^2539641 is an apocalyptic number.

It is an amenable number.

2539641 is a deficient number, since it is larger than the sum of its proper divisors (1107079).

2539641 is a wasteful number, since it uses less digits than its factorization.

2539641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65135.

The product of its digits is 6480, while the sum is 30.

The square root of 2539641 is about 1593.6251127539. The cubic root of 2539641 is about 136.4344705523.

The spelling of 2539641 in words is "two million, five hundred thirty-nine thousand, six hundred forty-one".